:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;color:#20304b;background:#f5f7fc;line-height:1.85}*{box-sizing:border-box}body{margin:0}header{background:#173052;color:white;border-bottom:6px solid #ffc84a}header div,main,footer{max-width:850px;margin:auto;padding:28px}header a{color:white}nav{display:flex;flex-wrap:wrap;gap:22px}main{padding-top:36px;padding-bottom:64px}h1{line-height:1.4;font-size:clamp(1.8rem,5vw,2.6rem);margin:20px 0}h2{font-size:1.25rem;margin-top:2.3em;color:#173052}a{color:#1557a0;text-underline-offset:4px}a:focus-visible{outline:3px solid #dd8900;outline-offset:5px}.eyebrow{font-weight:800;letter-spacing:.1em;color:#546d8d}.card{background:white;border:1px solid #dbe3ee;border-radius:18px;padding:22px;margin:24px 0}.button{display:inline-block;background:#173052;color:white;padding:10px 20px;border-radius:8px;font-weight:700}footer{border-top:1px solid #dbe3ee;font-size:.88rem}small{color:#58687d}li{margin-bottom:8px}@media(max-width:480px){header div,main,footer{padding-left:20px;padding-right:20px}}